390925E engine number
I'm see if we can read this...
So this says its a 1966-1967 late 400 V8, 4" dia. bore, 3.975" stroke, Piston P/N 390166, Crank P/N 230331, Crank Casting #384722, Connecting Rod #384758, Lifter Bore dia. .921", Bank Angle 39°
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